Researching is the skill that would contribute to someone's academic identity.
Answer: A
Explanation
When it comes to academics, knowledge imparts a higher position.
Marketing is a term for techniques that helps in promoting a product or service to people in business, thereby increasing income.
Negotiating is a daily-life skill that has profound importance in all aspects of life. It can be seen from employees demanding hike to employers to consumers buying products from dealers in the market.
Networking, from the perspective of career, is a vital skill for everyone to excel in their individual careers.